Question

Please help me find the 'a' in this equation. I am stuck in it.

Answer 1

Answer:

a=50°

Step-by-step explanation:

50 VOA to VOA of a side

and 70°corresponding

then

50+70+a= 180 angle sum property

130+a=180

a=50°

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Answer 2

Answer:

a = 60° ,if line with arrows are parallel lines.

Step-by-step explanation:

<2 = 70° (corresponding angles)

<3 = 50° (vertically opposite angles)

Therefore,

<1 = 180° - (70° + 50°) (By Pythagoras Theorem)

<1 = 180° - 120°

<1 = 60°

Hence, <1 = 60°

and,. a = 60° (vertically opposite angle with <1)